import {
  login,
  logout,
  getInfo
} from '@/api/user'
import {
  getToken,
  setToken,
  removeToken
} from '@/utils/auth'
import router, {
  resetRouter
} from '@/router'
import store from '@/store'

const state = {
  token: getToken(),
  name: '',
  avatar: '',
  introduction: '',
  roles: [],
  menus: []
}

const mutations = {
  SET_TOKEN: (state, token) => {
    state.token = token
  },
  SET_INTRODUCTION: (state, introduction) => {
    state.introduction = introduction
  },
  SET_NAME: (state, name) => {
    state.name = name
  },
  SET_AVATAR: (state, avatar) => {
    state.avatar = avatar
  },
  SET_ROLES: (state, roles) => {
    state.roles = roles
  },
  SET_MENU: (state, menus) => {
    state.menus = menus
  }
}

const actions = {
  // user login
  login({
    commit
  }, userInfo) {
    const {
      username,
      password
    } = userInfo
    return new Promise((resolve, reject) => {
      login({
        username: username.trim(),
        password: password
      }).then(response => {
        const {
          data
        } = response
        commit('SET_TOKEN', data.token)
        setToken(data.token) // 存储到cookie中
        resolve()
      }).catch(error => {
        reject(error)
      })
    })
  },

  // get user info
  getInfo({
    commit,
    state
  }) {
    return new Promise((resolve, reject) => {
      getInfo(state.token).then(response => {
        const {
          data
        } = response

        if (!data) {
          reject('验证失败，请重新登录')
        }

        const {
          roles,
          name,
          avatar,
          introduction,
          menujson
        } = data

        // console.log('获取用户信息返回的JSON', data);
        // 角色必须是非空数组 这里让返回数组，我有点蒙圈了，应该是
        if (!roles || roles.length <= 0) {
          reject('getInfo:角色必须是非空数组!')
        }

        // console.log('menujsonmenujson', menujson)

        commit('SET_ROLES', roles)
        commit('SET_NAME', name) // 用户名称
        commit('SET_AVATAR', avatar) // 用户的头像
        commit('SET_INTRODUCTION', introduction) // 简介吧
        commit('SET_MENU', menujson) // 菜单

        resolve(data)
      }).catch(error => {
        reject(error)
      })
    })
  },

  // user logout 退出登录
  logout({
    commit,
    state,
    dispatch
  }) {
    return new Promise((resolve, reject) => {
      // logout(state.token).then(() => {
      commit('SET_TOKEN', '') // 退出登录
      commit('SET_ROLES', []) // 权限为空
      removeToken() // token 干掉
      resetRouter() // 权限路由干掉

      // reset visited views and cached views
      // to fixed https://github.com/PanJiaChen/vue-element-admin/issues/2485
      dispatch('tagsView/delAllViews', null, {
        root: true
      })

      resolve()
      // }).catch(error => {
      // 	reject(error)
      // })
    })
  },

  // remove token
  resetToken({
    commit
  }) {
    return new Promise(resolve => {
      commit('SET_TOKEN', '')
      commit('SET_ROLES', [])
      removeToken()
      resolve()
    })
  },

  // dynamically modify permissions
  async changeRoles({
    commit,
    dispatch
  }, role) {
    const token = role + '-token'

    commit('SET_TOKEN', token)
    setToken(token)

    const {
      roles
    } = await dispatch('getInfo')

    resetRouter()

    // generate accessible routes map based on roles
    const accessRoutes = await dispatch('permission/generateRoutes', roles, {
      root: true
    })
    // dynamically add accessible routes
    router.addRoutes(accessRoutes)

    // reset visited views and cached views
    dispatch('tagsView/delAllViews', null, {
      root: true
    })
  }
}

export default {
  namespaced: true,
  state,
  mutations,
  actions
}
